Experience and methods of hard rock excavation in pipeline construction (in Russian)

1980 ◽  
Vol 17 (2) ◽  
pp. 36
Keyword(s):  
Hard Rock ◽  
Rock Excavation ◽  
Pipeline Construction

Development of Hard Rock Cutting Tool with Advanced Diamond Composites

2013 ◽  
Vol 690-693 ◽  
pp. 1831-1835 ◽  
Author(s):  
X.S. Li ◽  
Yong Sun
Keyword(s):  
Cutting Tool ◽  
Hard Rock ◽  
Tool Material ◽  
Rock Cutting ◽  
Rock Excavation ◽  
Diamond Composite ◽  
Normal Forces ◽  
Bonding Technology ◽  
Bottle Neck ◽  
Better Than

The modern mechanical excavation machines have enough power for cutting hard rock. The bottle neck which limits the use of machines for hard rock excavation is cutting tool. To cut hard and abrasive rock, CSIRO has been developing Super Material Abrasive Resistant Tools (SMART*CUT). SMART*CUT technology replaces the tungsten carbide (WC) tip of conventional pick with thermally stable diamond composite (TSDC) and attaches the TSDC tip to steel tool body with CSIRO worldwide patented bonding technology. This paper compares its performance with conventional WC tipped tools by a series of hard rock cutting tests. The cutting and normal forces acting on the tools were measured during these tests. The tests shown that the cutting performance of SMART*CUT pick was significantly better than that of WC pick. The testing results indicate that TSDC can be applied as an effective cutting tool material for cutting hard and abrasive rocks.

Use of Electron Beam Gun for Hard Rock Excavation

1972 ◽  
Author(s):  
Berthold W. Schumacher ◽  
R. G. Holdbrook
Keyword(s):  
Electron Beam ◽  
Hard Rock ◽  
Rock Excavation

Laboratory Comparison of SMART*CUT Picks With WC Picks

2014 ◽  
Vol 1017 ◽  
pp. 323-328 ◽  
Author(s):  
W. Shao ◽  
Xing Sheng Li ◽  
Yong Sun ◽  
Han Huang
Keyword(s):  
Hard Rock ◽  
Cutting Tools ◽  
Infrared Camera ◽  
Polycrystalline Diamond ◽  
Rock Excavation ◽  
Research Organisation ◽  
Recorded Data ◽  
Bonding Technology ◽  
Cutter Forces ◽  
Polycrystalline Diamond Compact

Application of polycrystalline diamond compact (PDC) based cutting tools for hard rock excavation in mining and construction industries has increased significantly in recent years due to their super hardness, superb thermal conductivity and long life durability. Super Material Abrasive Resistant Tool (SMART*CUT) technology has been developed by CSIRO (Commonwealth Scientific and Industrial Research Organisation) in the last 15 years, which includes the replacement of tungsten carbide (WC) tips of the conventional picks with thermally stable diamond composite (TSDC) tips, attachment of the TSDC tips to steel tool bodies with CSIRO’s worldwide patented bonding technology. The wear characteristics of TSDC cutting elements have been investigated previously. In this paper, the preliminary results of cutter forces and resultant angle of SMART*CUT picks were compared with that of traditional WC picks. A tri-axial force dynamometer and a data acquisition system were used to measure the cutter forces. Besides, the cutting area temperature during cutting process was continuously measured by a FLIR SC7600M thermal infrared camera and the recorded data were processed by Altair Software.

MINING TECHNOLOGY DEVELOPMENT FOR HARD ROCK EXCAVATION

1981 ◽  
pp. 919-926
Author(s):  
W. Hustrulid ◽  
R. Cudnick ◽  
R. Trent ◽  
R. Holmberg ◽  
P.E. Sperry ◽  
...  
Keyword(s):  
Hard Rock ◽  
Technology Development ◽  
Rock Excavation ◽  
Mining Technology
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